i just deployed my zimbra server on ubuntu 8.04. Installation went fine configured settings using the admin console. Then i configured the firewall:
opened ports 443 and 25 and using port forwarding i redirected this traffic to the internal ip of zimbra.
because the server will be webmail only i completely disabled imap and pop from server settings (please confirm if this is ok).
my problem is this: i can receive email from anywhere, but i cannot send anything.
i searched a lot and i didnt found anything that will help me so I need help to troubleshoot. Awaiting for your suggestions.